John Ross (1744–1809) was a British Army officer in the French and Indian War and the American Revolution.

After the war, Ross was instrumental in settling Loyalist refugees in what is now the Kingston area of eastern Ontario.

He was commissioned lieutenant in the 34th Regiment of Foot in July, 1762, and was present for the capture of Havana that year and then went on to garrison West Florida.

In October 1781 Ross led a force of troops from his garrison and from Fort Niagara in a raid on the Mohawk Valley by way of Oswego and Oneida Lake.

Since local concerns were administered by the military, Ross was appointed Justice of the Peace in 1784 to better enable him to deal with civilian problems among the settlers.

Ross transferred to the Coldstream Guards and was killed at the Battle of Talavera in Spain in July 1809 during the Peninsular War.